FAQ
MEM to CG4 Conversion
What are MEM files?
MEM is the file extension of a digital elevation model of Japan produced by the Geographical Survey Institute of Japan, now the Geospatial Information Authority of Japan (GSI), the national mapping agency. A file of this type covers a part of the country with a regular net of points, and each point holds the height of the ground above the Japanese vertical reference, which is based on the mean sea level of Tokyo Bay. The data were derived from the topographic maps of the Institute, and the older series came with grid spacings such as 50 meters. Coordinates are given in latitude and longitude on the Tokyo datum, the national system that was in use before the switch to modern satellite-based systems. Such files are used for terrain analysis, mapping, and visualization of Japan.
What are CG4 files?
CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.
Can reaConverter convert MEM to CG4?
Yes! reaConverter instantly converts .mem to .cg4 with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For MEM to CG4 it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.
Why choose offline conversion with reaConverter?
reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.
Can I convert MEM to CG4 online?
If you only need to convert a few MEM files to CG4 format, feel free to try our free online free online MEM to CG4 converter — perfect for small batches with no installation needed!
How can I turn MEM files into CG4 on my computer?
The best way to change MEMs to CG4s on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from MEM to CG4.
How can I automate MEM to CG4 files conversion?
reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.
Is there a way to convert MEM files to CG4 using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line mem to cg4 converter for batch processing.
What else can I do with reaConverter?
Convert GIS filesConvert vector imagesChange image DPIConvert CAD formatsChange file date
Related conversions
Other ways to convert MEM files, and other sources that convert to CG4.
